butt-huggers

noun[plural only]2

1. •
   (US, slang) Men's briefs; underwear.

   • She left a note on Ray's butt-huggers saying, 'Buy new underwear.' — 2002
2. •
   (US, slang) Skin-tight shorts.

   • She must be a knockout in the patent leather butt-huggers and spiked heels. — 2006